Restore a database in ApsaraDB for MongoDB

Instruction

Instances created after March 26, 2019 support database restoration. This function will be open to existing instances in the future. Follow the official website for update information.

Prerequisites

• The instance is created after March 26, 2019.
• The instance is located in China (Qingdao), China (Beijing), China (Zhangjiakou-Beijing Winter Olympics), China (Hohhot), China (Hangzhou), China (Shanghai), China (Shenzhen), or Singapore. Other regions are not supported.
• The instance type is replica set. Standalone and sharded cluster instances are not supported.
• The instance version is 3.4 or 4.0. V3.2 is not supported.
• The storage engine of the instance is WiredTiger. RocksDB and TerarkDB are not supported.
• The backup file in the instance backup list contains the database to be restored.

Precautions

• You can only restore databases from physical backups. Restoring databases from logical backups is not supported.
• You can only restore databases to newly-created instances. Restoring databases to each original instance is not supported.
  Note An instance will be created during database restoration. For the billing method of the instance, see Billing items and pricing.

Procedure

1. Log on to the ApsaraDB for MongoDB console.
2. In the upper-left corner of the page, select the region of the instance.
3. In the left-side navigation pane, click Replica Set Instances.
4. Locate the instance to be restored and click the instance ID.
5. In the left-side navigation pane, click Backup and Recovery.
6. On the Backup and Recovery page, click Create Instance By Time Point.
7. In the dialog box that appears, set the parameters listed in the following table.
   
   

   Parameter	Description
   Select recovery time point	Select a point in time that you want to restore the database to. You can restore the database to any point within the past seven days. Note The time must be earlier than the current time, and must be later than the time when the database was created.
   Select recovery database	All Databases Select Databases: Restore certain databases in the instance. You can select the databases that you want to restore or click Enter Databases to enter databases manually. Note If you want to restore more than one database, separate the multiple database names with commas (,).

8. Click OK. The Instance Purchase page appears.
9. Configure the new instance.
   Note In the Basic Configuration area, do not configure Region, Database Version, Storage Engine, and Node Number.

   Category	Parameter	Description
   Basic Configuration	Zone	A zone indicates a physical area in a region with independent power grids and networks. For more information, see Regions and zones. ApsaraDB for MongoDB and ECS instances between different zones in the same region can be connected through the internal network. For more information, see Connect to an ApsaraDB for MongoDB instance through a cross-zone intranet. Note When the ECS instance and the ApsaraDB for MongoDB instance in the same zone are connected through the internal network, the network latency is the minimum.
   Network Type	-	Classic Network: Cloud services on a classic network are not isolated, and unauthorized access to a cloud service is blocked only by the security group or whitelist policy of the service. VPC (recommended): A Virtual Private Cloud (VPC) is an isolated network with higher security and performance than the traditional classic network. The VPC is to be created before creating an instance. For more information, see Configure a VPC for a new instance.
   Specification Configuration	Specification	The CPU and memory occupied by the instance. The maximum number of connections and maximum IOPS vary depending on different specifications. The maximum IOPS is measured respectively under the read and write permissions, and can double under the mixed read/write permissions.
   	Storage Space	The storage space exclusive to each node in the replica set instance. Note The storage space of a node stores your data, system, and log files.
   Password Settings	Set Now Set Later	Set the password of the MongoDB database. You can set the password when creating or running the instance. The password must contain characters from at least three of the following categories: uppercase letters, lowercase letters, digits, and special characters. Special characters include !#$%^&*()_+-= The password must be 8 to 32 characters in length.
   Quantity Purchased	Duration	Subscription: Set the duration and quantity of the subscription instance. The subscription duration can be one to nine months or one to three years. Note This parameter is required only for subscription instances.
   	Quantity	Set the number of instances with the same specifications. It can be set to an integer of 1 to 10.

10. Click Buy Now. The Confirm Order page appears.
11. On the Confirm Order page, read and select ApsaraDB for MongoDB Agreement of Service, and make the payment as prompted.